SITRANS F flowmeters SITRANS F US. SITRANS FUE950 energy calculator. 4/240 Siemens FI

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1 s INFOCAL 5 s INFOCAL 5 s INFOCAL 5 Overview Application The SITRANS FUE950 is able to handle 3 kinds of applications, means energy calculation in: District heating applications Chilled water applications Combined cooling/heating applications Energy metering in heating, hot water applications (code "A" and "B") SITRANS FUE950 is a universal thermal energy calculator, which meets the requirements EN 13 and has the MID approval for heat metering. SITRANS FUE950 has been developed for the SITRANS FUS380/FUE380 and alternatively MAG 5000/6000. SITRANS FUE950 is modular in construction and can by order be fitted with optional modules depending on the application. SITRANS FUE950 can be used for flow rates up to m 3 /h. Benefits Basic functions Prepared for heating, cooling measurement Approval for MID for heat metering High-accuracy thermal energy metering, meets EN13 class 2 requirements Measured temperature range C ( F) Instantaneous values for energy/volume flow Battery or mains powered Lithium battery with lifetime typical 12 years (depending on selected functionality up to 16 years) Optical data interface Real date and time Storage of volume and energy data Additional functions Individual tariff functions Leak detection function Advanced functions for cooling/heating applications or the combination 2 months memory Data logger function Expandable add-on plug and play output modules Communication over M-Bus or RS 232 Power save mode Add-on modules Expandable functionality with 2 separate plug and play addon modules Plug-in module with 2 extra pulse inputs Plug-in module with pulse outputs for accumulated energy and volume or alarm signal Plug-in module with combination of input and output pulses Plug-in module for M-Bus communication Plug-in module for RS 232 communication Heat Energy metering in cooling, chilled water applications (code "C" and "D") Cooling V2 V1 Energy metering in combined cooling/heating applications (code "E" and "F") Cooling Heat T H T C /20 Siemens FI

2 Design SITRANS FUE950 has an easy-read 7-digit LCD display with associated pictograms for the various functions. As the display has been made for several applications, there will be figures/symbols which are not used for normal district heating applications. SITRANS FUE950 has a SIMPLE OPERATION push button and provides user-friendly control of various the display menu loops. The display will always be configured for the application chosen, and for the selected display settings. In normal operation menu loop, the display will show cumulative current energy values. The integrator has an IP5 plastic housing is designed for wall or panel mounting. The housing comes with prepared rubber gaskets cable entries for fast and easy installation. Operation menu loop structure The FUE950 display has six menu loops and the menus are numbered in the display from 1 to 6. Some display menus consist of two values (to maximum seven) that are shown alternately at - second intervals. The main menu loop no. 1 with the current data, e.g. for energy, volume, flow rate and temperature, is programmed as default setting. In the standard setting the menu loop no. 5 (tariff menu loop) is not activated. Displays and output pulses Units: MWh, kwh, GJ, Gcal, MBtu, m 3, m 3 /h, ºC; all decimal points are statically. The places after the decimal point of displayed values are indicated by the selected pulse input value and flow rate. The display unit and the last fractional digit are typical used for the pulse outputs. Values for energy, power, volume, flow rate, error and date Menu/ loop number Tariff 1 and 2 Alarm symbol Frame of fractional digits Energy and flow units Temperature sensor error Flow pulse input indicator point Maximum power/flow Function Technical principle Calculation of energy is based on the following formula: Energy = Volume x ( THot - T Cold ) x K factor (T i ) Volume: Volume [m 3 ] of a given amount of volume pulses T Hot : Measured temperature in the hot line T Cold : Measured temperature in the cold line K factor (T i ): Thermal coefficient of media enthalpy and heat content The energy calculation is made by a counter and depends on temperature difference, pulse input frequency and legal requirements. The calculator always carries out at least one energy calculation every 2 sec. If the connected flowmeter has not sent enough pulses the energy calculation and flow indication is also based on the 2 sec. value. Monthly memory The FUE950 has a history memory of 2 months. The following values are stored monthly in the EEPORM on the programmed day of 1 31 (via software tool). Date/Time Volume Energy Error day counter Tariff energy 1 Maximum monthly flow rate Tariff energy 2 Maximum monthly power Tariff definition 1 Date of maximum monthly flow rate Tariff definition 2 Date of maximum monthly power Pulse counter input 1 Pulse counter input 2 Operation hours Data logger memory (LOG) The LOG of the calculator is stored every 2 hours with all cumulative values in the EEPROM. The storage frequency can be selected from various storage intervals (5, 6, 10, 12, 15, 20, 30, 60 minutes or the default setting of 2 hours). The data which are stored in the LOG could be read out with a software tool and can be used for evaluations. Extract of possible LOG settings Storage Values Number of Recording interval data records period 5 minutes Error status hours Ooverload time temperature 15 minutes hours 1 hour Ooverload time flow days rate 2 hours Forward temperature 0 0 days (default setting) Return temperature Date and time Energy Tariff energy 1 Tariff energy 2 Tariff definition 1 Tariff definition 2 Volume Error day counter Maximal Values The integrator creates max. values for power and flow rate based on consumption time, which are stored in the EEPROM. The integration intervals are adjustable to 6, 15, 30 or 60 minutes and 2h. Default setting is 60 minutes. Tariff/Accounting date function The calculator includes two independent memories in which the accumulated energy at two programmable tariff dates are stored. Last accounting date Last but one accounting date Values stored Energy Volume Tariff counter 1 Tariff counter 2 Pulse counter 1 Pulse counter 2 Date Siemens FI /21

3 The integrator offers two optional tariff memories for monitoring plant load states. Here it concerns threshold value tariffs. Extensive tariff conditions make it possible to adapt the calculator individually to the required customer-specific applications. Both tariffs are separately configurable and independent from each other. Energy or time can be measured alternatively per tariff register dependent on the tariff mode adjusted in each case. With the "time triggered tariff function" (type "Z") the switch-on time and the switch-off time are adjustable independent from each other for each day of the week in steps of 15 minutes. The following limit types are possible: (This example applies to the display at 3 fractional digits after comma) Description Limit Limit resolution dt Temperature difference C 1 C -dt Negative temperature difference C 1 C TR Return temperature (low) C 1 C TV Forward temperature C 1 C (high) P Power 0, MW 0,1 MW Q Flow 0, m 3 /h 100 l/h FE "Theoretically forward energy" with return temperature of 0 C Z "Time triggered" counting energy E "External" counting energy Error handling and memory Events such as changes and faults are stored in a non-volatile memory with a capacity of up to 31 entries. The following events are recorded: Checksum error Temperature measurement error Start and end of test mode If SITRANS FUE950 records an error, this will be automatically indicated by a "alarm symbol" on the display. To protect the reading data, all the relevant data are saved in a non-volatile memory (EEPROM). This memory saves the measured values, device parameters and types of error at regular intervals. The following events are recorded: Temperature measurement error Swapped hot and cold temperature sensors Battery empty warning Power supply failure Communication warning Leak detection warning RAM checksum error Outputs/Inputs/Communication Communication interfaces: SITRANS FUE950 is fitted with an optical infra-red send/receive port in accordance with EN13/IEC 61107, protocol standard, EN13/EN (M-Bus protocol). A reader head with a permanent magnet (IrDA-adapter) in accordance with EN 13 can be used for readout data or communication with the parameterization software. 2 Slots for optionally plug-in modules The calculator features 2 slots for the plug-in modules. One slot is for the function modules and the other for the communication modules. The following communication modules are available as options: RS 232 module, M-Bus module. The RS 232 communication module is a serial interface and permits data exchange with the calculator. For this purpose a special data cable is necessary. The M-Bus module is a serial interface for communication with external devices (M-Bus Repeater/Centre). According the M-Bus structure a number of calculators can be connected to a control centre. Pulse input module Two pulse inputs are available. The pulse value and the unit is configurable for energy, water, gas or electrical meter by parameterization software. Data are separate cumulated in different registers and are also stored on the two accounting day's (Tariff registers). Combined Pulse Input/Output module Two pulse inputs combined with one pulse output are available on one module. The pulse inputs are configurable with value and the unit by parameterization software. The pulse output is also programmable using the parameterization software. Pulse output The calculator provides levels for two optional external pulse outputs, which can be freely programmed using the parameterization software tool. Default setting is a pulse output occurs per change in the least significant digit in the display with the unit and resolution selected by the device ordering. Possible pulse output values Energy (standard setting) Volume (standard setting) Tariff energy 1 Tariff energy 2 Tariff condition 1, limit switch Tariff condition 2, limit switch Energy error Volume error Volume with specific resolution (0.1 l, 1.0 l, 10 l, 100 l) at 3 digits after volume comma for the display unit m 3 Energy with specific resolution (0.1 kwh) at 3 digit after volume comma for the display unit MWh Leakage detection (2 flow meter channel) Module combinations The calculator has a group of extension modules for communication and another group of extension modules for additional functionality. These modules are available first selected within the calculator, or for retrofitting in the field. One single function module as well as one single communication module out of following modules is selectable. Function modules: Pulse input module, 2 inputs Pulse output module, 2 outputs Combined pulse module 2 inputs, 1 output Communication modules: M-Bus RS 232 /22 Siemens FI

4 Integration SITRANS FUE950 is a multi-purpose energy calculator which meets the requirements of EN 13. Further, the energy calculator has been specially developed to receive volume pulses from SITRANS FUS380/FUE380 or alternatively MAG 5000/6000 transmitter. Technical specifications Approval MID approved in accordance with heat meter EN 13 Approved temperature range ºC ( F) Absolute temperature range C ( F) Differential temperature K (starting at 0.1 K) Accuracy max. ±( K/ Θ) [%] Flow range Q n (Q p ) m 3 /h Power range value kw Environment class EN 13 class C/A Accuracy of FUE950 Max. error Θ User interface Display 7-digit LCD display with associated pictograms/symbols Units MWh, kwh, GJ, Gcal, MBtu, m 3, m 3 /h, ºC, kw Totalizer value range , , Values Power, energy, volume, flow rate, temperatures Push button Single push button for the menu controlling Optical interface IrDA interface EN 13 SITRANS FUE950 ZVEI optical interface with M-Bus protocol as per EN13, connection via separate IrDA-adapter Rated operation conditions Enclosure IP5 in accordance with IEC 529 Material Top PC Lexan 11R Transparent 111 Pipe/wall fitting PA 6,6 GF25 Other plastic parts ABS Cycolac GPM500 Gaskets Neoprene Rubber cable bushings EPDM 50 Temperature Ambient C ( F) Storage C ( F) Environment class EN 13 class C/A Temperature input Temperature range Absolute measuring range Temperature difference Sensor types Sensor connection Measurement resolution Flow input (In 0) Pulse value C ( F) Start 0.1 K, min. 3 K, max. 177 K Pt 100 or Pt 500 with 2-wire leads, cable length < 10 m, standard setting: Pt 500, selection by order code and shown at the device label (only Pt 500 types are available) -wire (prepared as 2-wire) 0.1 C (0.18 F) Volume input from an external flowmeter 0.1 to l/pulse, selection by order code. Will be shown at the device label (only Pt 500 types are available) 100 Hz Pulse frequency Flow range Q max m 3 /h Pulse ON-time ms Pulse OFF-time 6 ms Active or passive pulse input External voltage supply (active pulse input) Flowmeter installation place Slots for option modules Function modules Max. 3.6 V DC (min. 3.0 V DC) and max up to the power supply module version, e.g. 3.0 V DC Hot line or cold line ("forward or reward pipe"), selection by order code. The "inst. place" will be shown at the device label. The calculator features 2 slots for optional plug-in modules, one slot for a function module and the other for a communication module. Pulse input module, 2 inputs (In1, In2) Pulse output module, 2 outputs (Out1, Out2) Combination module of 2 inputs (In1, In2) and 1 output (Out1) Communication modules M-Bus or RS 232 Pulse output Passive "open collector" pulse output, outputs potential isolated to each other Pulse value Last display digit unit/pulse, selection by order code and setting can be read via display menu, freely programmable by a software tool Pulse frequency Hz Pulse length typical 125 ms ( ms) External voltage supply 3 30 V DC Current 20 ma Siemens FI /23

5 Possible pulse output selection (max. output frequency: Hz) Pulse input Pulse value Pulse frequency Pulse length External voltage supply Current Cable length M-Bus output Protocol Connection RS 232 output Protocol Connection Power supply Supply data Battery, 3.6 V type Battery, 3.0 V type (standard): Energy (standard setting for 'Out1') Volume (standard setting for 'Out2') Tariff energy 1 Tariff energy 2 ariff condition 1 (limit switch) Tariff condition 2 (limit switch) Energy error Volume error Volume in m 3 with specific display resolution (or with factor 0,1, 10 or 100 thereof) Energy with specific display resolution (or factor 0.1 thereof) Leakage detection (2 channel) Passive "open collector" pulse inputs, outputs not potential isolated to each other, data are separate cumulated in different registers and are also stored on the two accounting day's. Pulse value and the unit are configurable for energy, water, gas or electrical meter by a software tool 8 Hz 10 ms 3 30VDC based on R i =2.2MΩ < 10 m connection limit The optional M-Bus plug-in module is a serial interface for communication with external devices (M-Bus Repeater) M-Bus according EN13 Open collector, 200/300 baud, 3.6 V The optional plug-in RS232 communication module is a serial interface and permits data exchange with the calculator. For this purpose a special data cable is necessary M-Bus according EN13 Open collector, 200/300 baud, 3.6 V Internal voltage 3.0 V or 3.6 V by the battery or plug-in power supply module 3.6 V lithium D-cell, battery lifetime typically years, 16 years with independently powered flowmeter 3.0 V lithium C-cell, battery lifetime typically years, 12 years with independently powered flowmeter 230 V AC module Plug-in module for 230 V AC +15/-30% 50/60 Hz (incl. battery backup) 2 V AC module Plug-in module for 2 V AC (incl. battery backup) Battery backup Only with mains supply modules by internal 3.0 V lithium battery (type BR 2732) Accessories/Software The parameterization software based on the M-Bus is a convenient tool for handling the calculator. It runs on Windows 2000/XP and is used for: Configuration of the calculator functionality, reading out different memories, printing out calculator logs. For more details to it please contact Siemens. A reader head with a permanent magnet in (IrDA adapter) accordance with EN 13 can be used for programming/altering programming of readout data, configuration data, etc. The reader head can also be used to change measuring data. Dimensional drawings SITRANS FUE950, dimensions in mm (inch) Wall mounting 99 (3.9) max.3 mm (0.11) 128 (5.0) 9 (3.7) 5 (2.13) 70 (2.75) xø mm (0.15) Panel mounting, dimensions in mm (inch) 150 (5.9) s /2 Siemens FI

6 Technical specifications of PT500 temperature sensor pair Application The temperature sensor set is designed for use with the Siemens energy calculator type SITRANS FUE950 for measurement of the energy consumption in a district heating net. To ensure an accurate measurement of the temperature difference according to MID (EN 13) the sensors are delivered as matched pairs. By selection with the order code the sensor pair sets can be delivered without any approvals for multiple-purpose applications. Stainless steel sensor pocket Media temperature C ( ºF) Medium Typically heating water Response time T 0.5 Typically 13 s at 0. m/s with pasta Typically 5 s at 0. m/s without pasta Pressure rating PN 16 Cable length L1 (mm) L (mm) Material Stainless steel: Mat. No Technical specifications Pt500 temperature sensor pair (EN 13) Measuring insert Pt500 temperature sensor, EN 60751, tolerance class B, 2-wire Pairing Paired to EN13 ( C/ ºF) Media temperature C ( ºF) Response time T 0.5 See specification sensor pocket Medium Typically heating water Pressure rating See specification sensor pocket Protection IP65 Pipe material Mat. No (AISI 30 Ti) Dimension 6 mm Sensor length 50 m Cable length 2, 3, 5 or 10 m ( C at the dimensional drawing) Brass sensor pocket Media temperature C ( ºF) Medium Typically heating water Response time T 0.5 Typically 9 s at 0. m/s with pasta Typically 5 s at 0. m/s without pasta Pressure rating PN 16 Cable length L1 (mm) L (mm) Material Brass: CuZn 0 Pb2 (Ms 58) Dimensional drawings Pt500 temperature sensor pair (EN 13) Cable length 2, 3, 5 or 10 m ('C' at the dimensional drawing) Ø 6 (0.2) Pt 500 temperature sensor, dimensions in mm (inch) Stainless steel sensor pocket cable length L1 (mm) L (mm) Ø 8 (0.32) 50 (1.97) Sensor pocket, stainless steel, dimensions in mm (inch) L L 1 G½ C Brass sensor pocket cable length L1 (mm) L (mm) L 1 G½ Ø 8 (0.32) L Sensor pocket, brass, dimensions in mm (inch) Siemens FI /25

7 Selection and Ordering data Order No. Order code Energy calculator SITRANS FUE950, Custody transfer approved 7 ME Flow input setting: (The pulse input value selection must be the same as the pulse output setting of the selected flowmeter) Pulse input value Flow limit Q s (Q max ) in m 3 /h (L/pulse) A B C (typical selection for FUS380/FUE380: DN ) 2 A (typical selection for FUS380/FUE380: DN ) 2 B C (typical selection for FUS380/FUE380: DN ) 3 A B (typical selection for FUS380/FUE380: DN ) 3 C (typical selection for FUS380/FUE380: DN /1200*)) A B *) Max. flow rate up to m 3 /h Calculator application For heating, flowmeter in return pipe (cold pipe) (typical standard) A For heating, flowmeter in forward pipe (hot pipe) B For cooling, flowmeter in forward pipe (cold pipe) C For cooling, flowmeter in return pipe (hot pipe) D For combined cooling/heating, flowmeter in forward pipe (hot pipe as heating) E For combined cooling/heating, flowmeter in return pipe (cold pipe as heating) F Temperature input and sensor pair Pt 500 setting, no sensor pair included (standard) 0 Pt 500 pair, 2-wire, 6 mm sensor diameter, 2 m cable 1 Pt 500 pair, 2-wire, 6 mm sensor diameter, 3 m cable 2 Pt 500 pair, 2-wire, 6 mm sensor diameter, 5 m cable 3 Pt 500 pair, 2-wire, 6 mm sensor diameter, 10 m cable Pt 100 setting, no sensor pair included 5 Pt 100 pair, 2-wire, 5.2 mm sensor diameter, 2 m cable 6 Temperature sensor pocket sets: (for 6 mm sensor diameter) No pockets (standard) 0 0 mm brass pocket for 6 mm sensor diameter (2 pcs. for the selected sensor pair above) 1 85 mm brass pocket for 6 mm sensor diameter (2 pcs. for the selected sensor pair above) mm brass pocket for 6 mm sensor diameter (2 pcs. for the selected sensor pair above) 3 85 mm steel pocket for 6 mm sensor diameter (2 pcs. for the selected sensor pair above) 120 mm steel pocket for 6 mm sensor diameter (2 pcs. for the selected sensor pair above) mm steel pocket for 6 mm sensor diameter (2 pcs. for the selected sensor pair above) mm steel pocket for 6 mm sensor diameter (2 pcs. for the selected sensor pair above) 7 Voltage supply Battery 3.0 V DC (C-cell) (standard) 0 Battery 3.6 V DC (D-cell) 1 Mains power module for 230 V AC supply 2 Mains power module for 2 V DC supply 3 No power supply module (power supply ordering separate) This device is shipped with a Quick Start guide and the SITRANS F manual CD containing the complete manual library. Printed Operating Instructions are available for purchase via PMD. /26 Siemens FI

8 Selection and Ordering data Order No. Order code Energy calculator SITRANS FUE950, Custody transfer approved 7 ME Option modules at place 1 and 2 No module at place 1 and 2 (standard) Module on place 1 (communication) M-Bus module and no module on place 2 RS 232 module and no module on place 2 Module on place 2 (pulse in-/outputs) Pulse output, 2x output (Out1 "Energy" and Out2 "Volume") and no module on place 1 Pulse input, 2x input (In1 and In2) and no module on place 1 Pulse out-/input combination, 2x input and 1x output and no module on place 1 Combination of modules on place 1 and 2 M-Bus module (place 1) and Pulse output, 2x output (Out1 "Energy" and Out2 "Volume") (place 2) M-Bus module (place 1) and Pulse input, 2x input (In1 and In2) (place 2) M-Bus module (place 1) and Pulse out/-input combination, 2x input and 1x output (place 2) RS 232 module (place 1) and Pulse output, 2x output (Out1 "Energy" and Out2 "Volume") (place 2) RS 232 module (place 1) and Pulse input, 2x input (In1 and In2) (place 2) RS 232 module (place 1) and Pulse out/-input combination, 2x input and 1x output (place 2) Display units and shown fractional digits MWh & kw, m 3, m 3 /h - 2 fracitonal digits MWh & kw, m 3, m 3 /h - 1 fracitonal digit GJ & kw, m 3, m 3 /h - 2 fracitonal digits GJ & kw, m 3, m 3 /h - 1 fracitonal digit Gcal & kw, m 3, m 3 /h - 2 fracitonal digits Gcal & kw, m 3, m 3 /h - 1 fracitonal digit Mbtu & kw, m 3, m 3 /h - 2 fracitonal digits Mbtu & kw, m 3, m 3 /h - 1 fracitonal digit *) See also at the flow input selection Verification/Approval Without type approval mark, neutral label (in English (standard)) 0 With MID type approval mark (only for heating, seletion "A"/"B") 1 With MID approval mark and first verfication (only for heating, seletion "A"/"B") 2 Further designs Please add "-Z" to Order No. and specify Order code Special settings/programming Settings for tariff function (specify in clear text) D 0 2 Pulse output settings (specify in clear text) D 0 6 Pulse input settings (specify in clear text) D 0 8 M-Bus address (specify in clear text) D 1 2 Cooling Water/glycol setting for media type "Tyfocor LS (R)" (only with neutral label, no verification and approval) Country/Label/ plates/documentation language English setup (standard) (no Code necessary) German setup E 0 2 A B C D E F G H J K L M C D H J M N Q R C 0 2 Siemens FI /27

9 Ordering example Example: Calculator for a DN 500 FUE380 flowmeter (Q s = 130 m 3 /h). Flowmeter with Q s = 130 m 3 /h and 100 l/pulse output setting (7ME310-3MC35-6ER2) District heating, flowmeters in return pipe (cold line) Pt 500 sensor pair with 10 m cables (2-wire) 210 mm stainless steel pockets 230 V AC supply RS 232 data output and also 2 puse outputs MWh as unit in the display and 1 fractional digit With MID approval mark and first verification Order No. 7ME370-AA7-2KD2 SITRANS FUE950 accessories and spare parts Calculator SITRANS FUE950 /description Order No. Option modules Pulse input module (2 inputs) A5E Pulse output module (2 outputs) A5E Combination pulse in-/output module (2 inputs and A5E output) Data RS 232 module A5E Data RS 232 module, A5E incl. serial data cable (1.5 m, incl. serial PC-plug) M-Bus slave module A5E Power supply 3.0 V C-cell battery for SITRANS FUE950 A5E V D-cell battery for SITRANS FUE950 (16 years, A5E by internal regulator) 230 V AC supply module for SITRANS FUE950 A5E (incl. internal fuse T50mA L 250 V) 2 V AC supply module for SITRANS FUE950 A5E Accessories Infrared optical adapter for data communication via A5E PC Bracket for SITRANS FUE950 wall mounting (12 A5E pcs) Cable for data communication PC/D-sub 9F/3-wire A5E Pocket for temperature sensors /description Brass pocket 6 mm, G½B x 0 mm (PN 16), 1 pc. Brass pocket 6 mm, G½B x 85 mm (PN 16), 1 pc. Brass pocket 6 mm, G½B x 120 mm (PN 16), 1 pc. Brass pocket 6 mm, G½B x 85 mm (PN 25), 1 pc. Brass pocket 6 mm, G½B x 120 mm (PN 25), 1 pc. Brass pocket 6 mm, G½B x 155 mm (PN 25), 1 pc. Brass pocket 6 mm, G½B x 210 mm (PN 25), 1 pc. Order No. A5E A5E A5E A5E A5E A5E A5E Pt500 temperature sensor pair, 2-wire, 6 mm type /description Order No. Pt500, cable, with MID/EN-approval and verification Length: 2m A5E m A5E m A5E m A5E Please also see for practical examples of ordering. /28 Siemens FI